https://bugs.kde.org/show_bug.cgi?id=484647
--- Comment #1 from Mosklia <sparky_14...@outlook.com> --- OK now i found a way to reproduce it. 1. Open 2+ IDEA projects in separate windows. 2. Keep all the windows open. 3. Choose File -> Project Structure 4. As the dialog "Project Structure" pops out, you may see the icon on taskbar representing current IDEA window disappears. 5. Current IDEA window becomes a "missing" window. It cannot be accessed via taskbar, but can be accessed via Alt-Tab task switcher. 6. Repeat step 2~4 you may create even more missing windows. Seems there's other ways to achieve this. I'm not sure. -- You are receiving this mail because: You are watching all bug changes.